Burner for liquid fuels.



No. 708,893. PatentedSept. 9, I902.

c. G. LUNDHOLM.

BURNER FOR LIQUID FUELS.

' (Application filed Aug. 8, 1901.)

N0 Model.)

2 Sheets-Sheet .l.

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0.6. LUNDHOLM. I 1

BURNER FOB LIQUID FUELS.

(Application filed Aug. 8. 1901.)

(No Model.) 2 Sheets-Sheet 2.

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' UNITED STATES PATENT OFFICE.

CHARLES GUSTAVUS LUNDHOLM, OF SAN BERNARDINO, CALIFORNIA.

BURNER FOR LIQUID FUELS.

SPECIFICATION forming part of Letters Patent No. 708,893, datedSeptember 9, 1902. Application filed August 8, 1901. Serialllo- 71,335.(No model.)

To aZZ whom it may concern;

Be it known that I, CHARLES GUSTAVUS LUNDHOLM, a citizen of the UnitedStates, and a resident of San Bernardino, in the county of SanBernardino and State of California, have invented a new andImproved-Burner for Liquid Fuels, of which the following is a full,clear, and exact description.

This invention relates to a burner adapted especially for burning oils,and it is of that class in which the oils are atomized by a spray ofsteam or air previous to the combustion of the oil.

This specification is a specific description of one form of theinvention, while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indi catecorresponding parts in all the views.

Figure 1 is a longitudinal section of the invention on the line 1 1 ofFig. 3. Fig. 2 is a cross-section on the line 2 2 of Fig. 1. Fig. 3 is alongitudinal section on the line 3 3 of Fig. 1. Fig. dis a frontelevation showing particularly the mouthpiece or tip of the burner, andFig. 5 is a front view of the flange of the front section of the nozzle.

The burner has an exterior cylindrical shell 0, into which is screwedthe rear nozzle-section a.

b represents the oilsupply pipe, which enters the rear end of thenozzle-section a. The

rear portion of the shell 0 is enlarged over the diameter of the shellatthe front portion, and the front portion of the nozzle (1 hasguidelugs a thereon which bear against the smaller diameter of the shellto steady the nozzle-section a. The front end of the nozzle-section a istapered at its outer edge, as indicated at a. Directly ahead of the rearnozzle-section a. is located the front nozzle-section er the rear end ofwhich is flared to match the tapered front end of the nozzle-section a.This section a has afia'nge oRat-its front end,in which are formeddiagonal perforations.

d, Fig. 3, represents the steam-supply pipe, which enters. the shell 0,so that the steam passes along the nozzle-sections a and 0.

e represents the mouthpiece or tip of the burner, which is of duck-billform and fastened to the front end of the shell through the medium offlanges c and e, formed, respectively, on the parts 0 and e and securedtogether'by bolts or other suitable fastenings. The nozzle at the pointof the flange e is circular in cross-section; but owing to the peculiarform described it broadens out at the discharge, so as to eject a'flatdivergent stream. Between these flanges c and e is secured the flange aof the nozzle-section a findicates ears which are formed on the shell 0and by which the burner may be fastened in the position desired.

The two nozzle-sections a and a are arranged in line with each" other,the back section a being fastened to and supported in the shell 0 at therear and the section a being secured by the flange of. The front end ofthe section a is beveled, so as to direct the steam-blast into theoil-chamber in a converging conical stream, and the same result isattained by the perforations in the flange a through which the steam.from the nozzlesection a? passes. The oil-passingthrough the parts a anda and the steam being forced into the oil-stream in twocircular-converging streams results in the most thorough atomizing ofthe oil. The burner thus constructed insures the effective combustion ofthe oil, and it is especially adaptable for use in connection with theheavy oils which heretofore have been very difficult to consume. Thisisltrue owing to the manner in which the tubular steam-jets areconverged into the center of the stream of oil, so that the oil,notwithstanding its heaviness, is thoroughly atomized.

Having thus described my invention, I claim as new andjdes'ire to secureby Letters Patent- 1. A burner for liquid fuel, comprising a shell, amouthpiece at its front end, and two nozzle-sections 'located in andseparated from the shell in longitudinal linewith each other, thenozzle-sections having a passage between them, and the frontnozzle-sectionhaving a passage between its front end and the shell, andmeans for supplying the fuel and an atomizing fluid, the one to theinterior of the nozzles and the other to the exterior of the" nozzleswithin the shell.

2. A burner for liquid fuels, comprising a shell, a mouthpiece fastenedto the front end thereof, a front nozzle-section situated in the shelland spaced therefrom, said front 11ozzle-section having a perforatedflange secured between the front of the shell and the month piece, arear nozzle-section located in the shell in line With and back of thefront nozzle-section, said nozzle-sections having a passage betweenthem, and means for supplying the fuel and an atonlizing fluid, the oneto the interior of the nozzles and the other to the exterior of thenozzles within the shell.

3. A burner for liquid fuel, comprising a shell, two nozzle-sectionslocated in and separated from the shell said nozzle-sections being inlongitudinal line with each other, the

nozzle-sections having a passage between them and the frontnozzle-section having a passage between its front end and the shell, andmeans for supplying the fuel and an atomizing fluid, the one to theinterior of the nozzles and the other to the exterior of the nozzleswithin the shell.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

CHARLES GUSTAVUS LUNDHOLM.

Witnesses:

O. F. LAPE, R0131. (JUNNINGHAM.

